Contents - Volkspage

20 000 mile service 1.11
15.6 Checking the
auxiliary drive belt tension
assess the amount of deflection that can be
caused (see illustration). Compare this
measurement with that listed in the Specifications.
If necessary, refer to the relevant sub-
Section and correctly tension the belt.
Tensioning
All models except G40
7 Slacken the alternator mounting screws,
until the alternator can be moved by hand.
6 Working underneath the alternator, slacken
the tensioning strut pivot mountings. Slacken
the tensioner nut lockscrew by one turn (see
illustration).
9 Tighten the tensioning nut to the specified
‘initial’ torque - this sets the belt tension - then
hold the nut in this position and tighten the
tensioning nut lockscrew to the specified
torque. Note: The tensioning nut ‘initial’
torque figure differs for new and old belts -
see Specifications for details
10 Re-tighten the alternator and tensioning
strut mounting screws to the specified torque,
then start the engine and run it for about 5
minutes, to allow the belt to settle.
11 Stop the engine, then re-tension the Veebelt,
as described in paragraphs 8 to 10, but
this time tighten the tensioning nut to the
‘final’ torque figure specified.
G40 models with single or twin
auxiliary Vee-belts
12 The belt tension is set by rotating the
G-charger on its mountings, as follows:
15.8 Auxiliary drivebelt tensioning strut,
at the base of the alternator
(all models except G40)
1 Tensioner nut lockscrew
2 Tensioner nut
13 With reference to Chapter 4B, slacken the
G-charger mounting bracket screws.
14 Insert a square drive torque wrench into
the adjusting hole at the edge of the
G-charger mounting bracket (see illustrations).
Note: On mode/s built before
December 1990 it will be necessary to first
remove the front radiator grille - refer to
Chapter 11 for details.
15 Rotate the wrench anti-clockwise and
apply the specified tensioning torque to the
G-charger mounting bracket - this sets the
belt tension. Hold the G-charger in this
position, then tighten the mounting bracket
screws to the specified torque. Note: The
tensioning torque figure differs for new and
old belts - see Specifications for details.
16 Refit the radiator front grille, where
applicable.
Renewal
All models except G40
17 With reference to the information given in
paragraph 7, slacken the alternator and
adjusting strut screws, then pivot the
alternator towards the engine to relieve the
tension on the belt.
18 Remove the belt, then clean off any
deposits that may have built up in the ‘vee’ of
the crankshaft and alternator pulleys.
19 Fit the new belt to the crankshaft and
alternator pulleys, then refer to the relevant
sub-Section and adjust the belt tension.
G40 models with single or twin
auxiliary V-belts
20 With reference to the information given in
paragraph 13, slacken the mounting bracket
screws, then allow the G-charger to pivot
down towards the engine to relieve the
tension on the belt(s).
21 Lift the off the belt(s), then clean off any
deposits that may have built up in the ‘vee’ of
the crankshaft, alternator and G-charger
pulleys.
22 Fit the new belt over the pulleys, then
refer to the relevant sub-Section and adjust
the belt tension.
1 The correct functioning of the spark plugs is
vital for the correct running and efficiency of
the engine. It is essential that the plugs fitted
are appropriate for the engine (a suitable type
is specified at the beginning of this Chapter). If
this type is used and the engine is in good
condition, the spark plugs should not need
attention between scheduled replacement
intervals. Spark plug cleaning is rarely
necessary, and should not be attempted unless
specialised equipment is available, as damage
can easily be caused to the electrodes.
2 If the marks on the original-equipment spark
plug (HT) leads cannot be seen, mark the leads
“1” to “4”, to correspond to the cylinder the
lead serves (No 1 cylinder is at the timing belt
end of the engine). Pull the leads from the
plugs by gripping the end fitting, not the lead,
otherwise the internal lead connection may be
fractured (see illustration).
3 It is advisable to remove any dirt from the
spark plug recesses using a clean brush or
compressed air before removing the plugs, to
prevent dirt dropping into the cylinders (see
illustration). Note: On engine codes AAU,
AAV it will be necessary to remove the air
cleaner housing to gain access to the plugs.
15.14b Auxiliary drivebelt tensioning -
post-December 1990 G40 models
16.2 Pull the leads from the plugs by
gripping the end fitting